/Engine/Plugins/Experimental/PlanarCutPlugin/Source/PlanarCut/Public/PlanarCut.h
Populate an array of transform indices w/ those that are smaller than a threshold volume
void FindSmallBones ( const [FGeometryCollection](API\Runtime\Chaos\GeometryCollection\FGeometryCollection) & Collection, const [TArrayView](API\Runtime\Core\Containers\TArrayView)< const int32 > & TransformIndices, const [TArrayView](API\Runtime\Core\Containers\TArrayView)< const double > & Volumes, double MinVolume, [TArray](API\Runtime\Core\Containers\TArray)< int32 > & OutSmallBones, bool bIncludeClusters )